“Whether you are dancing, singing, or just being happy, we want you to submit your videos,” the 24 Hours of Happiness site reads. “Take action to create a happier world for people everywhere.”

Participants are free to begin sharing their submissions on March 10. Pharrell will highlight the best videos on March 20, at noon in each time zone. The project — which is being organized to support “humanitarian efforts around the world” — is the latest act of charity from Pharrell, who recently auctioned off his legendary Grammys hat (to Arby’s, no joke) on behalf of his own education-focused nonprofit From One Hand to Another.

The all-star producer also just released his second solo album, the generously upbeat G I R L. Out this week via Columbia, the LP features guest appearances by Justin Timberlake, Daft Punk, Alicia Keys, and Miley Cyrus.

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Will Butler has always been an outlier. As Arcade Fire's second-most-famous Butler, he's always made being weird seem just as alluring as fitting in. During the band's live shows, the multi-hyphenate artist (synthesizer, bass, guitar, clarinet, and hell, even the glockenspiel) avoids the spotlight while throwing out enough manic energy — howling in one moment,… More »